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(No Model.) 2 Sheets-Sheet 1. S. S. BRADSHAW.

WINDOW.

No. 362,714. Patented May 10,1887.

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(No Model.) 2 Sheets-Sheet 2. S. S. BRADSHAW.

WINDOW,

No. 362,714. Patented May 10, 1887.

7,3%@ df y W5 NiTn STATES ITFICE@ SILAS S. BRADSHAIV, OF CHICAGO,ILLINOIS, ASSIGNOR TO JOHN YV. GARVY, OF SAME PLACE.

WINDOW.k

SPECIFICATION forming pari; of Letters Patent No. 362,714, dated May 10,1887.

Application filed August 16, 1886. Serial No. 210,972.

To all whom t may concern:

Be it known that I, SILAs S. BRADSHAW, of Chicago, in the county of Cookand State of Illinois, have invented certain new and useful Improvementsin 'indows; and I do hereby declare that the following is a full, clear,and exact description thereof, reference being had to the accompanyingdrawings, and tothe letters of reference marked thereon, which form apart ofthis specification.

This invention has for its object to provide an improvement inwindow-sash mountings in which the sash is provided with separate piecesupon its vertical edges that run in the stilegrooves, and from which thesash can be entirely detached at pleasure for the purpose of cleaningthe window or for other purposes.

To this end the invention consists in the matters hereinafter set forth,and pointed out in the appended claims.

In the accompanying drawings, which illustrate one practicable anddesirable form in which my invention may be embodied, Figure lis anelevation of a window-frame containing sliding sash having myimprovement applied thereto. Fig. 2 is a transverse vertical section inthe linew of Fig. l. Fig. 3 is a horizontal fragmentary section in theline e z of Figrl. Fig. 4 is a horizontal fragmentary section on theline yy of Figs. l and 2. Fig. 5 is a vertical fragmentary section of asash in the line y y of Fig. G. Fig. 6 is a horizontal section iu theline a' m of Fig. 5, showing one sash present and the other removed.

A A is a window-frame, of which B B are the pulley-Stiles and C C arethe stops, between which are the grooves O, for guiding the sash intheir vertical movements.

D is the inner or lower and D is the outer or upper sash guided by thegrooves C.

E E are slides iitted to the grooves O,and respectively secureddetachably to the vertical margins of the sash l) D.

F F are the sash-cords connected with the slides E E', and G G aresash-weights.

A distinctive novelty of my improvement consists in securing the sash tothe marginal slides E L in such manner that they are wholly detachabletherefrom, so that the sash may be entirely removed from thewindow-frame, and, for example, taken to another place to be (No model.)

cleaned, or laid entirely aside and out of the way, if itbe desired to`open the entire windowspace to the passage of air. This novel featureinvolves several matters of construction as either needful or desirable,and which are shown and described inthe forms now believed to be best,but which may be changed without departure from my principal invention.For example, when a sash is entirely removed from its slides, in alowered position, it is desirable that the latter shall not be allowedto run violently to the top of the frame under the action of the weightsattached thereto, and I have therefore provided a catch which may engageeach of the slides to the adjacent stile, and thus hold it down. l

I have also provided means for retaining the slides in their grooveswhen the window-sash is removed as a desirable end to be attained, and Ihave shown the connections of a sash with its slides such that the sashmay be only tilted, if desired, without, or preliminary to, completeremoval. I have also sought to simplity the operation ot' working theinvention by showing such a construction of the catch for holding theslides down that said catch will automatically engage the stile upon theremoval of the sash, and will be detached from the stile automaticallyupon the insertion of the sash. I of course do not wish to be restrictedte the employment of these and other auxiliary devices, or to theparticular forms of such devices as are shown.

The slides E E and sash D D/ are shown as rabbeted on their contiguousfaces to provide a shoulder or stop at c, against which the sash maybear outwardly against the slide. As a desirable construction the slideslfor the upper sash are shown thicker than the slides E, and havingthinner parts (produced by the rabbet) as thick or thicker than thethicker part of the lower slides, E, whereby the upper sash, whenlowered to the bottom of the window-frame, may be drawn inward betweenthe slides ofthe lower sash, from which slides said lower sash shallhave been previously removed.

At or near the lower end of each of the several slides E E is provided ashort fixed pin, e, and the sash is provided with adownwardlydirectedopen slot or recess, d, to receive said pin, which construction permitsthe sash to be IOO raised entirely clear of the slides. AtA someelevated part of the sash suitable catches arek provided for engagingthe sash with the slides-as, for example, a iiush ring-bolt, as shown atd', Fig. l, or a mortise spring-bolt, as shown at d', Fig. 5. Theseserve to hold the sash upright and secure the upper part of the sash,while the pins e secure the lower part to the slides.

I prefer to make the shoulder e undercut, as shown on both the sash andslides, so that when the sash is forced to proper alignment with theslides the latter will be held close to the sash.

As one of many suitable forms of catch by which to holdethe slides downafter the sash has been withdrawn, a simple sliding bolt may beemployed, fastened either to the frame or to the slide and entering theother when thrown; or a hook pivoted on the slide may be arranged toengageascrew head or pin on the stile, like a familiar form ofwindow-fastening. These and other equivalent catches are so common andWell known as not to require illustration. I prefer, however, to use acatch that shall be thrown into action or allowed to act by the outwardmovement of the sash, andthat shall be disengaged by the insertion ot'the sash. A practical form of such a device is shown in detail in Figs.5 and 6.

His a bent lever pivoted between its ends to the top of the slide, theend h thereof having a throw into and ont of a recess, b, in the stileB. The opposite end, h', is made curved and convex, and is arranged toproject into the path of the sash or beyond the adjacent vertical faceof the slide, as shown. Any suitable form of springs-as, for example, abent platespring, -is applied to the lever H, so as to normally throwsaid lever into position to enterthe recess b in the stile and therebylock the slide to the stile. When the sash is inserted, it'pushes theend h of the lever H inward and withdraws its opposite end from thestile; but when the sash is removed it allows the lever to swing on itspivot under the action of the spring to engage the stile, and thelocking and release of the slide are thus made,respectively,simultaneous with the removal or insertion of the sash.

As this device is here shown, the lever II and its spring are housed ina metal case, H, having a vertical plate, h3, Fig. 5, by which thehousing may be better secured to the slide,

and which may also afford aseat or striker for a bolt, d. Metal platesD2 are also shown as being attached to the upper corners of the sash 'toact as strikersfor the lever I-I, both the housing I-I and the strikerD2 being undercut at the shoulder e. It desired, the catch for holdingthe slides down may be located at their lower instead of their upperends, or between their ends.

To retain the slides in the grooves C the slides may be provided withprojections occupying grooves in or applied to the stops. In thedrawings, external devices for this purpose are shown in Figs. 2, 3, 4,and 6, I I being plates, fastened to the stops C, and provided with lipsf,affording grooves i', and J being angleplates having projectingtongues or lips j, which occupy the grooves t" when the sash is inposition to permit its removal from the slides. Provision is made forwithdrawing the sashes in their lowered positions, as shown in Fig. 6,the sash being released first at its upper end, then tilted inward onthe pins e', as also there shown, and then lifted oft said pins andcarried away. To reinsert the sash this operation is simply reversed,the sash being dropped down over the pins e', then pnshed'into anupright position between the slides,and fastened by such devices as maybey employed for the purpose. Y

My invention contemplates the entire detachment of the sashes fromtheslides, while the latter are held upright in the lower part of thewindow-frame in position to again con'- venientl y receive the sasheswhen the latter are ready to be replaced. My improvementtherefore allowsof the entire removal ofthe sashes from the window to permit them to betaken4 to a proper place for cleaning, and also allows of their removaland replacement by the operator without climbing or leaving the door.The catches for securing the slides to the stile are, however, notlimited in their use to the construction in which the slides are whollydetachable from the sash; but they lmay be employed in connection withthe olderpivoted or hinged construction in which the sashes are merelymovable with respect to the slides and are not entirely detachabletherefrom.

In a subsequentlyled application for patent-namely, No. 220,757, filedDecember 6, 1886--relating to the same general subject, matters areshown which fall within some of the claims of this patent; but suchmatters are not here specifically claimed.

I claim as my invention-H 1. The combination of a grooved windowframe,slides l`fitted to run in the grooves of said frame, a sash whollydetachable from said slides, sash-weights attached to the slides, fastenings which detachably secure the sash to the slides, and otherfastenings on the several slides which detachably engage said slideswith the window-frame.

2. The combination, with a window-frame and a vertically-movable sash,of weighted window-slides at the vertical margins of the sash fitted torun in engagement with the framestiles, means for detachably securingthe sash to the slides,whereby the sash may be entirely removed from theslides while the latter are retained in the frame, and movablefastenings on the slides for retaining the latter in place at the lowerpart of the window-frame when the sash is being removed and when absent.

3. The combination, with a window-frame and sliding sash, of aslidemovably secured to the vertical margin of the sash and a catch forengaging the slide with the adjacent stile hav- In testimony that Iclaim the foregoing as ing bearing engagement with thesash,whereby myinvention I affix my signature in presence the catch is held disengagedfrom the stile by of two Witnesses.

the sash when the latter is in place. I

5 4. The combination, With a Window-frame SILAS S. BRADSHAVV.

and sliding sash, of a slide removably secured to the sash, and anautomatic catch engag- Vitnesses: ing the slide with the frame when thesash is M. E. DAYTON, absent and held clear of the frame by the sash C.CLARENCE POOLE.

zo when the lat-teiis present.

